Attachment lug



FIG. 1 is a perspective view of the attachment lug in accordance with the present invention;

FIG. 2 is a left side view thereof, the left and right sides being identical;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front thereof; and,

FIG. 6 is a rear view thereof.

The broken lines depict a portion of the attachment lug that forms no part of the claimed design. 

The ornamental design for an attachment lug, as shown and described. 